Trestle



,Aug. 27, 1929. A. w. ALLYN 1,726,375

TRESTLE Filed Jan. 1a, 1928 2 Sheets-Sheet 1 ATTO RN EY A. w. ALLYN Aug. 27, 1929.

TRESTLE Filed Jan. 18, 1928 2 Sheets-Sheet ATTOR N EY Patented Aug. 27, 1929.

ARTHUR w. AIiLYN, or SEBRINQ'IVELORIDA.

I TRESTLE.

' Application filed January 18, 1928.v Serial No. 247,644.

My presentinvention has reference to an improved trestle that. is primarily designed for use by carpenters but, ofcourse, is not to be thus restricted, and an important ob- 5 ject of the invention istheprovision of a trestle that'is collapsible so that the same will provide a small package that may be easily conveyed from place to place or stored when notrequired for use, and quickly and rigidly set up in a manner, to provide for the vertical adjustment thereof.

A further object is the provision of a vertical adjustable and collapsible or knockdown trestle which has .its top provided with a pivoted stop that may be swung above the said top to provide a stop for boards to be planed on the trestle, and which is likewise provided with a swingable catch to engage the edge of a door or window that is planed 20 or otherwise operated on by a mechanic.

To the attainment of the foregoing, the improvement resides in certain other details of construction, combination and operative association of parts, one satisfactory embodiment of which is disclosed by the accompanying drawings.

In the drawings:

Figure 1 is a bottom plan view of the improvement in folded position.

Figure 2 is a side elevation thereof.

Figure 3 is a detail sectional View taken approximately on the line 33 of Figure 5 to illustrate the stop and the catch both swung to operative position.

Figure 4 is a perspective view of one of the bails employed.

Figure 5 is a top plan View of the improvement in set up position.

Figure 6 is a side elevation.

Figure 7 is an end View thereof.

Figure 8 is a detail perspective view to illustrate the arrangement of the stop element in the notch at one end of the top board or plate.

On the top beam 1 of the im rovement I secure strips or cleats 2. One these cleats is located at the center of the beam 1, the remaining being arranged at the ends of the beam. The cleats 2 support thereon and 50 have secured thereto the top plate 3 of the improvement.

One of the end cleats 2 and one end of the top plate or board 3 is notched, as at 4 and in this notch there is pivoted a stop 55 member that has a toothed edge 6. When board 3 and into the notch when in inoperative position. Thememberfi thus provides an effective stop for biting engagement with timbers arranged on the plate or board 3 to be either planed, chiseled or otherwise operated upon. I l i I Hingedly secured on the inner face of the cleat2 to which the stop member 5 ispivoted, there is a strip 7 having an outstanding lug 8. This stri serves as'a catch, when swung along one si e of the trestle. When in this position the hinged side of the strip 7 will contact with one side of the cleat 2, and when swung beneath the-plate or board 3, the lug 8 is received in an opening 9 in the said cleat. The catch member serves as an effective support or stop for doors, window sashes or for other work to be planed or chiseled by the operator- Pivotally secured to the sides and adjacent to the ends of the beam 1 there are pairs of brace bars 10. These bars 10 have their outer or free ends pivotally connected to a beam or plate 12 that provides the central member for the supporting legs of the improvement. The legs proper are indicated by the numeral 13 and as disclosed by the drawings, have their upper ends cut angularly and secured to the opposite sides of the beams 12. A transverse member 14 is secured to the outer end of each of the beams 12 and to the inner faces of the angularly disposed pairs of legs 13.

The central member of each of the legs which I have referred to as the beam or plate 12 has pivotally secured to the sides thereof, adjacent to its upper end, the arms of bail 15. The outer corners at the upper ends of the members 12 of the legs are rounded or beveled, as at 16, and the outer edge at the connecting portion for the arms of each of the U-shaped bails 15' is arranged at a downward angle and formed with teeth 17. When the bails are swung to one position the same will freely travel over the beam 1, but when the central members 12 of the legs are brought against the under face of the beams and the bails are canted toward the ends of the beam 1, their toothed edges 17 will bite into the top of the said beam and in this manner it will be seen that the trestle may be effectively and rigidly sustained at different desired vertical in operative position, thestop member 5 is swung upwardly beyond theplane of the said beams so that the trestle may be collapsed to provide a small bundle or package that may be easily conveyed or stored Except when when not required for use. the stop element is swung to stopped position the top board or plate3 of the impr'ove-- ment presents a plain unobstructed surface upon which boards or timbers" of soft or of valuable material may be arranged with out liability to damage. The beam 1 is arranged a suitable distance below the board 3 and this beam'alone has its upper edge engaged by the tee'th1-7 of the U-sh'apedbit ing element's/or bails*-15- and the biting en gagement of the said beams by these elements will hold the legs 13 at desired angles with respect to the body of the t're'stle and will likewise permit ofthe body being'arranged atdesired angles with respect to the legs."

The construction and advantages! thereof will, it is thought, he understood and appreciated when the foregoing description has been carefully read in connection with the accompanying drawings; but obviously I donot wish to be restricted to the precise details herein set forth and therefore hold mysel f entitled to make such changes there from as fairly fall within the scope of the appended claim.

Having described the invention, I claim:

A trestle comprising a top board, spacer elements on the under face thereof, a longitudinally extending: beam secured to the spacer elements; pairs of angularly arranged supporting" legs, a bail straddling; the beam and pivotally' secured to'the: legs and each of said bails 7 having an angle toothed connectingzsurfaoe for biting engagementwith' the upper edge of the-beam and braces pivotally secured 1 to i the sides of the"- beam" and adjustably pivoted to the 1 legs; 7 i

In testimony whereof I alfix Iny signature.

ARTHUR w. ALLY-N; 

